Answer:

Step-by-step explanation:

If
than
and 

<u>⇒ Switch sides:-</u>
<u />
<u>⇒ Add 1 to both sides:-</u>
<u />

And...

<u>⇒ Add 1 to both sides:-</u>
<u></u>

<u>⇒ Now, Combine the intervals:-</u>
<u />
<u>OAmalOHopeO</u>
720 divided by 72 is 80
7 tens divided by 9 is 8
Answer:
idk either
Step-by-step explanation:
A because x is the original price, so you multiply by the tax (9%) which would convert to 1.09 which you would multiply to the x